Install the Ambari agents manually on RHEL-CentOS-Oracle 7

Install an Ambari agent on each host in your cluster.

1. Install the Ambari Agent.
   yum install ambari-agent
2. Using a text editor, configure the Ambari Agent by editing the ambari-agent.ini file. as shown in the following:

   vi /etc/ambari-agent/conf/ambari-agent.ini
   [server]
   hostname=<your.ambari.server.hostname>
   url_port=8440
   secured_url_port=8441

3. Start the agent on every host in your cluster.
   ambari-agent start
   The agent registers with the Server on start.